The origin of the compound A and compound B in the given reaction is to be explained. Concept introduction: In the Wittig reaction, an aldehyde or a ketone reacts with triphenyl phophonium ylide to generate an alkene and triphenylphosphine oxide. The triphenyl phophonium ylide is termed as Wittig reagent. The Wittig reagent gives good yields of alkene in case of reactants in which other functional groups are present on the aldehydes or ketones . However, as the steric hindrance of the aldehyde or ketone increases, the yield of alkene decreases.

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Chapter 18, Problem 41P

Interpretation Introduction

Interpretation:

The origin of the compound A and compound B in the given reaction is to be explained.

Concept introduction:

In the Wittig reaction, an aldehyde or a ketone reacts with triphenyl phophonium ylide to generate an alkene and triphenylphosphine oxide.

The triphenyl phophonium ylide is termed as Wittig reagent. The Wittig reagent gives good yields of alkene in case of reactants in which other functional groups are present on the aldehydes or ketones. However, as the steric hindrance of the aldehyde or ketone increases, the yield of alkene decreases.

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